Sentry Temperature Control Unit (TCU)
The Sentry Temperature Control Unit is a mechanical refrigeration system designed specifically for the unique requirements of power plant water chemistry. It provides a closed loop of cooling water at precisely controlled temperature with ± 1˚F (0.5˚C) accuracy. When used with high efficiency close approach trim coolers, all samples will be cooled to 77˚F (25˚C) without regard to incoming flow rate or temperature.